<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>scrollLeft</title>
    <script src = 'jquery-1.12.4.min.js'></script>
    <style>
        *{
            margin: 0;
            padding: 0;
        }
        .bord{
            border: 1px dashed #ee2602;
            width: 90%;
            margin: 20px auto;
        }
        .title{
            font-size: 20px;
            font-weight: bold;
            margin: 20px;
        }
        .introduce{
            font-size: 16px;
            margin: 0 0 20px 50px;
        }
        .red{
            color: red;
        }
    </style>
    <script>
        jQuery(function ($) {
            $('#mybtn').click(function () {
                var li = $("li:first");
                $("li:last").text( "scrollLeft:" + li.scrollLeft() );
            })
        });
    </script>
</head>
<body>
<div class="bord">
    <div class="title">scrollLeft</div>
    <div class="introduce">获取匹配元素相对滚动条左侧的偏移。</div>
</div>
<div class="bord">
    <div class="title">演示效果</div>
    <div class="introduce">
        <ul>
            <li>list item 1</li>
            <li>list item 2</li>
            <li>list item 3</li>
            <li>list item 4</li>
            <li>list item 5</li>
        </ul>
        <br/>
        <button id="mybtn">获取第一个li元素相对滚动条左侧的偏移</button>
    </div>

</div>
<div class="bord">
    <div class="title">代码</div>
    <div class="introduce">
        <pre>
&lt;script&gt;
    jQuery(function ($) {
           var li = $("li:first");
                $("li:last").text( "scrollLeft:" + li.<a class="red"> scrollLeft() </a>);
        });
&lt;/script&gt;
            <br/>
&lt;div class="introduce"&gt;
    &lt;ul&gt;
        &lt;li&gt;list item 1&lt;/li&gt;
        &lt;li&gt;list item 2&lt;/li&gt;
        &lt;li&gt;list item 3&lt;/li&gt;
        &lt;li&gt;list item 4&lt;/li&gt;
        &lt;li&gt;list item 5&lt;/li&gt;
    &lt;/ul&gt;
    &lt;br/&gt;
    &lt;button id="mybtn"&gt;获取第一个li元素相对滚动条左侧的偏移&lt;/button&gt;
&lt;/div&gt;
        </pre>
    </div>
</div>
</body>
</html>